Comparison Of The Spinning Properties Of Three Kinds Of Woollen Spinning Equipment

There are three main types of common Woollen Spinning Frame: walking frame spinning frame, walking spindle spinning frame and ring spinning frame.

These three kinds

The results show that the evenness of the yarn is much better than that of the ring spinning frame, but the production efficiency is lower than that of the ring spinning frame.

The spinning performance and effect of the three kinds of spinning machines have their own advantages. When they are used, they can selectively use these three devices according to the size of the batch, the quality and variety required by the customers, so as to effectively exert their utility and reduce unnecessary maintenance.

Spinning mechanisms vary.

The frame spinning frame and the spindle spinning frame are essentially the same. The difference is that the frame is reciprocating when it is working, while the spindle is spinning when it is working.

The spinning mechanism of the walking frame and the spindle spinning frame is the same, but their spinning mechanism differs from that of the ring spinning frame.

The main difference is that the spinning machine has different ways to complete the three main processes of drafting, twisting and winding.

Drafting and twisting are carried out in the horizontal direction in the frame spinning frame and the spindle spinning frame, and the twisting and winding process is not carried out at the same time.

For ring spinning frames, drafting and twisting are basically carried out in the vertical direction, and the three processes of twisting, drafting and winding are carried out at the same time.

The walking frame and the spindle spinning frame are horizontal, and the drafting area is longer, usually by twisting the spindle.

The spindle shaft is almost perpendicular to the roving plane but slightly tilted.

During drafting and twisting, the yarn slips at the top of the spindle when the spindle rotates, adding the twist to the roving instead of winding the roving to the tube yarn.

Some people believe that this light effect helps to redistribute the twist and form a vibration conducive to drafting.

In the first stage of the working cycle, the surface drum pfers the roving from the bobbin frame to the vehicle to move the speed back, while the spindle rotates with a small twist.

At the preset point of moving back, the roller is stopped and the car continues to move backward.

In this way, the length of the twisted roving is drawn, and the twist is added.

At the end of drafting, spindle speed is increased to the fastest and added the last twist.

As the car returns to the starting point, the yarn is rolled onto the roll.

In the winding process, the tension bow and the winding bow are used to bind the roving, so that the spinning of the spindle can twist the twisted yarn into the tube yarn in a certain form.

The longer drafting area on the spindle spinning machine will help for better drafting because the longer part will allow for a wider range of density changes in the drafting area.

Because the twisting drafting mechanism is a competition mechanism, the long surplus change can be solved in the longer drafting area.

In the ring spinning, the twisting and winding steps of the yarn are combined together.

There is a light weight traveller on the collar. The yarn is penetrated through the spindle tube.

Rotating spun yarn drives the traveller to revolve around the fixed collar, because the friction between the traveller and the collar is a little slower than that of the spindle, so that the yarn can be wound onto the tube.

As the spindle speeds up, the friction between the traveller and the collar increases, the centrifugal force on the yarn increases, and the tension on the yarn increases.

The selection of the weight of the traveller must make the tension greater than the centrifugal force on the yarn at all speeds, otherwise the yarn will not be properly wound.

If the traveller is too heavy, the tension may often exceed the strength of the local yarns at high speed, and the yarn will be broken at the finest part.

Ring spinning is a continuous spinning process. Therefore, when the spindle speed is uniform, its production efficiency is much higher than that of the frame spinning frame and the spindle spinning machine. This is because the spindles of the frame spinning frame and the spindle spinning machine are spinning in part.

In wool worsted and cotton spinning, the spindle spinning machine has been completely replaced by ring spinning frame and some other new spinning equipment, such as rotor spinning machine and jet.

Compared with worsted yarns, woolen yarns have different quality and different aesthetic feeling.

The fibers in the woollen yarns are not so parallel, and the yarn is also more fluffy, so it can be used for processing more fluffy knitted clothing and flannel clothing.

Compared with worsted systems, the woolen system can handle shorter fibers and is more suitable for blending multiple fibers, including blending with a high proportion of recycled fibers.

Spinning results vary.

According to the spinnability of the three kinds of equipment, the cashmere with the same quality was selected as the raw material for spinning.

Under the same technological conditions, 77tex/2 cashmere yarn was produced by feeding the same batch of roving spun from the same machine.

The yarn test results show that the evenness of the yarn is better than that of the ring spinning frame. In terms of strength, the strength of the spinning frame and the spindle spinning yarn is obviously better than that of the ring spinning yarn. In terms of twist, the twist evenness of the spinning frame and the spindle spinning yarn is slightly better than that of the ring spinning yarn; in terms of the number irregularity, the number of ring spinning spun yarn is the smallest and the yarn count is the best; the elongation rate of the spinning frame and the spindle spinning yarn is larger than that of the ring spinning yarn; moreover, the difference between the three fabrics is not obvious. For spinning

The difference between the three spun yarns is determined by the way of spinning.

Because the drafting twisting of the frame spinning frame and the spindle spinning frame is horizontal, and there is no control area. When twisting is not winding, the twist is not twisted. The twist has a good balance on the whole yarn, so the twist irregularity is better, the evenness is better, and the strength is better. However, because the draft area is too long, the count irregularity is worse than the ring spinning.

The drawing and twisting of the ring spinning frame is vertical, and there is a false twister on the draft channel, and the control area is short, the twist balance time is short, so the twist unevenness is poor, but the count irregularity is better than the other two spinning equipments.

On the other hand, the ring spinning frame has no control area, the tension of the yarn is smaller than that of the spindle yarn, and the breaking force is less than that of the spindle and rack.

Because of the intermittent work of the walking frame and the spindle spinning machine, their productivity is much lower than that of the ring spinning machine. However, the research shows that the yarn sliver spun by the walking frame and the spindle spinning frame is more uniform than that of the ring spinning frame, so the spinning frame and the spindle spinning frame are still very popular in the woolen industry.

The ring spinning frame is large in volume and high in speed, and it has a higher output relative to the frame spinning frame and the spindle spinning frame.

The length of the drafting area of the walking frame and the spindle spinning frame is not limited to the length of the raw material used, as long as the yarn is not broken, and the draft area of the ring spinning frame is short, which is suitable for short spinning products.

In terms of yarn quality, ring spinning is more relative than walking frame and spindle spinning.

The spinning performance and spinning effect of walking frame spinning frame, walking spindle spinning frame and ring spinning frame are different.

When used, the three devices can be selectively used according to the size of the batch, the quality and variety required by the customers, and the advantages and disadvantages should be avoided, so as to effectively play its utility and reduce unnecessary maintenance.